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Utils.java
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35 lines (28 loc) · 696 Bytes
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package utils;
import org.junit.Test;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
public class Utils {
/*
TASK
swap util 분리
*/
@Test
public void test() {
int[] arr = {1,2,3};
int[] chagedArr = {1,3,2};
assertThat(swapValue(arr, 1,2), is(chagedArr));
}
public static int[] swapValue(int[] arr, int a, int b) {
int temp = arr[a];
arr[a] = arr[b];
arr[b] = temp;
return arr;
}
public static char[] swapValue(char[] arr, int a, int b) {
char temp = arr[a];
arr[a] = arr[b];
arr[b] = temp;
return arr;
}
}